Home / 91,325,872-136,967,845.44-54,448,196.80

Finding the Fourth Proportional to 91,325,872, 136,967,845.44 and 54,448,196.80

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Solution

The fourth proportional to 91,325,872, 136,967,845.44 and 54,448,196.80 is: 81,659,797.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,325,872 : 136,967,845.44 = 54,448,196.80 : x
  2. Step 2: Convert to fraction form
    91,325,872/136,967,845.44 = 54,448,196.80/x
  3. Step 3: Cross multiply
    91,325,872x = 136,967,845.44 × 54,448,196.80
  4. Step 4: Simplify right side
    91,325,872x = 7,457,652,203,789,102
  5. Step 5: Solve for x
    x = 7,457,652,203,789,102/91,325,872
  6. Step 6: Final answer
    x = 81,659,797.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.